.page-products {
  --product-hl: var(--color-orange);
  --product-line: var(--color-line);
  --product-navy: var(--color-navy);
  --product-midnight: var(--color-midnight);
  --product-muted: var(--color-muted);
  background: var(--color-midnight);
  color: var(--color-text);
}

/* ========== Hero ========== */
.page-products .products-hero {
  position: relative;
  padding: 36px 0 56px;
  background: var(--color-midnight);
  border-bottom: 1px solid var(--color-line);
  overflow: hidden;
}

.page-products .products-hero::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 44%;
  height: 100%;
  background:
    linear-gradient(90deg, transparent 0%, rgba(74, 144, 226, 0.08) 100%),
    repeating-linear-gradient(0deg, transparent, transparent 23px, var(--color-line) 23px, var(--color-line) 24px);
  opacity: 0.5;
  clip-path: polygon(18% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-products .products-hero__inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.page-products .products-hero__content {
  max-width: 680px;
}

.page-products .products-hero .page-hero__index {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--color-orange);
  text-transform: uppercase;
  margin-bottom: 12px;
}

.page-products .products-hero h1 {
  font-family: var(--font-heading);
  font-size: 30px;
  line-height: 1.18;
  margin: 0 0 16px;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

.page-products .products-hero__lead {
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-muted);
  margin-bottom: 24px;
}

.page-products .products-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-products .products-hero .btn--outline {
  border: 1px solid var(--color-line);
  color: var(--color-text);
  background: transparent;
}

.page-products .products-hero__panel {
  position: relative;
  border: 1px solid var(--color-line);
  background: rgba(10, 30, 60, 0.6);
  padding: 20px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px 14px;
  clip-path: polygon(18px 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%, 0 18px);
  max-width: 480px;
  margin-left: auto;
}

.page-products .products-hero__stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  border-left: 2px solid var(--color-orange);
  padding-left: 10px;
}

.page-products .products-hero__num {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
  font-variant-numeric: tabular-nums;
}

.page-products .products-hero__unit {
  color: var(--color-orange);
  font-size: 16px;
  margin-left: 2px;
}

.page-products .products-hero__label {
  font-size: 12px;
  color: var(--color-muted);
  line-height: 1.5;
}

.page-products .products-hero__note {
  grid-column: 1 / -1;
  border-top: 1px dashed var(--color-line);
  padding-top: 12px;
  margin: 4px 0 0;
  font-size: 13px;
  color: var(--color-muted);
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.page-products .products-hero__note .data-label {
  margin-right: 4px;
}

/* ========== 核心服务区块 ========== */
.page-products .services-section {
  position: relative;
  padding: 56px 0 64px;
  background: var(--color-midnight);
  border-bottom: 1px solid var(--color-line);
}

.page-products .services-rail {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.14;
  overflow: hidden;
  pointer-events: none;
}

.page-products .services-rail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
}

.page-products .services-section .container {
  position: relative;
  z-index: 1;
}

.page-products .services-blurb {
  margin-top: 34px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.page-products .services-blurb__text .data-label {
  margin-bottom: 10px;
}

.page-products .services-blurb__text h2 {
  font-family: var(--font-heading);
  font-size: 22px;
  line-height: 1.3;
  margin-bottom: 14px;
  letter-spacing: -0.01em;
}

.page-products .services-blurb__text p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-muted);
}

.page-products .services-blurb__meta {
  margin-top: 20px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  border-top: 1px dashed var(--color-line);
  padding-top: 18px;
}

.page-products .services-blurb__label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--color-orange);
  text-transform: uppercase;
  margin-bottom: 6px;
}

.page-products .services-blurb__meta p {
  margin: 0;
  font-size: 13px;
  color: var(--color-text);
  line-height: 1.7;
}

.page-products .services-blurb__frame {
  align-self: stretch;
  min-height: 220px;
  border: 1px solid var(--color-line);
}

.page-products .services-blurb__frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* ========== 服务技能树 ========== */
.page-products .service-tree {
  margin-top: 44px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.page-products .service-tree__row {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-products .service-tree__node {
  position: relative;
  padding: 16px 18px;
  border: 1px solid var(--color-line);
  background: var(--color-navy);
  clip-path: polygon(0 0, 100% 0, calc(100% - 12px) 100%, 0 100%);
  transition: border-color 0.25s ease, background 0.25s ease, transform 0.25s ease;
  cursor: default;
}

.page-products .service-tree__node:hover,
.page-products .service-tree__node:focus-visible {
  border-color: var(--color-orange);
  background: #102A4A;
  transform: translateX(4px);
  outline: none;
}

.page-products .service-tree__node:focus-visible {
  box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.3);
}

.page-products .service-tree__label {
  display: block;
  font-family: var(--font-heading);
  font-size: 17px;
  font-weight: 700;
  margin-top: 6px;
  line-height: 1.3;
}

.page-products .service-tree__cap {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-muted);
  letter-spacing: 0.06em;
  margin-top: 4px;
}

.page-products .service-tree__connect {
  display: none;
}

.page-products .service-tree__connect-line {
  fill: none;
  stroke: var(--color-line);
  stroke-width: 1.6;
  stroke-dasharray: 4 3;
  transition: stroke 0.25s ease;
}

.page-products .service-tree__detail {
  padding: 20px 18px;
  border: 1px solid var(--color-line);
  background: var(--color-navy);
  border-left: 3px solid var(--color-orange);
  border-radius: 0 var(--radius-md) 0 var(--radius-md);
  transition: background 0.25s ease, border-left-color 0.25s ease;
}

.page-products .service-tree__row:has(.service-tree__node:hover) .service-tree__detail,
.page-products .service-tree__row:has(.service-tree__node:focus-visible) .service-tree__detail {
  background: #102A4A;
  border-left-color: var(--color-orange);
}

.page-products .service-tree__detail .card__title {
  font-family: var(--font-heading);
  font-size: 18px;
  margin: 10px 0 8px;
  line-height: 1.3;
}

.page-products .service-tree__detail .card__text {
  font-size: 13px;
  line-height: 1.8;
  color: var(--color-muted);
  margin-bottom: 12px;
}

.page-products .service-points {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px dashed var(--color-line);
  padding-top: 12px;
  display: grid;
  gap: 8px;
}

.page-products .service-points li {
  position: relative;
  padding-left: 16px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--color-text);
}

.page-products .service-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 8px;
  height: 2px;
  background: var(--color-orange);
}

/* ========== BOB 绑定区块 ========== */
.page-products .binding-section {
  padding: 56px 0 64px;
  background: var(--color-navy);
  border-bottom: 1px solid var(--color-line);
  position: relative;
  overflow: hidden;
}

.page-products .binding-section::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 120px;
  height: 6px;
  background: linear-gradient(90deg, var(--color-orange), transparent);
}

.page-products .binding-grid {
  margin-top: 34px;
  display: flex;
  flex-direction: column;
  gap: 36px;
}

.page-products .binding-flow__lead {
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-muted);
  border-left: 3px solid var(--color-orange);
  padding-left: 14px;
  margin-bottom: 24px;
}

.page-products .bind-steps {
  display: grid;
  gap: 14px;
  margin-bottom: 20px;
}

.page-products .bind-step {
  position: relative;
  display: flex;
  gap: 14px;
  padding: 16px 16px 16px 14px;
  border: 1px solid var(--color-line);
  background: rgba(10, 30, 60, 0.55);
  border-radius: var(--radius-sm);
  transition: border-color 0.25s ease, background 0.25s ease;
}

.page-products .bind-step--current {
  border-color: var(--color-orange);
  background: rgba(255, 107, 53, 0.06);
}

.page-products .bind-step__num {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-orange);
  line-height: 1;
  min-width: 34px;
  padding-top: 2px;
  font-variant-numeric: tabular-nums;
}

.page-products .bind-step__content h3 {
  font-family: var(--font-heading);
  font-size: 15px;
  margin: 0 0 4px;
  line-height: 1.3;
}

.page-products .bind-step__content p {
  font-size: 13px;
  line-height: 1.7;
  color: var(--color-muted);
  margin: 0;
}

.page-products .binding-flow__note {
  font-size: 13px;
  color: var(--color-muted);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.page-products .binding-flow__note .tag {
  margin: 0;
}

.page-products .binding-aside {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.page-products .binding-aside__frame {
  max-width: 360px;
  border: 1px solid var(--color-line);
  background: rgba(255, 107, 53, 0.03);
}

.page-products .binding-aside__frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.page-products .binding-aside__desc {
  font-size: 13px;
  line-height: 1.8;
  color: var(--color-muted);
  border: 1px solid var(--color-line);
  background: var(--color-midnight);
  padding: 16px;
  margin: 0;
  max-width: 360px;
}

.page-products .binding-aside__desc .data-label {
  margin-right: 8px;
}

/* ========== 安卓客户端区块 ========== */
.page-products .android-section {
  padding: 56px 0 64px;
  background: var(--color-midnight);
  border-bottom: 1px solid var(--color-line);
  position: relative;
}

.page-products .android-section::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 34%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-orange));
}

.page-products .android-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}

.page-products .android-figure__frame {
  border: 1px solid var(--color-line);
  background: rgba(74, 144, 226, 0.04);
  max-width: 380px;
}

.page-products .android-figure__frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.page-products .android-content__lead {
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-muted);
  margin-top: 22px;
}

.page-products .android-version {
  font-family: var(--font-mono);
  color: var(--color-orange);
  font-weight: 700;
  padding: 2px 8px;
  border: 1px solid rgba(255, 107, 53, 0.45);
  border-radius: var(--radius-sm);
  background: rgba(255, 107, 53, 0.06);
}

.page-products .android-route {
  margin: 22px 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.page-products .android-route__step {
  border: 1px solid var(--color-line);
  background: var(--color-navy);
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  color: var(--color-text);
}

.page-products .android-route__arrow {
  font-family: var(--font-mono);
  color: var(--color-orange);
  font-size: 15px;
}

.page-products .android-tip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  border: 1px dashed var(--color-line);
  padding: 14px 16px;
  font-size: 13px;
  color: var(--color-muted);
  background: rgba(10, 30, 60, 0.5);
}

.page-products .android-tip p {
  margin: 0;
  line-height: 1.7;
}

/* ========== 版本收藏指南区块 ========== */
.page-products .version-section {
  padding: 56px 0 64px;
  background: var(--color-navy);
  border-bottom: 1px solid var(--color-line);
}

.page-products .version-section__lead {
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-muted);
  max-width: 780px;
  margin: 22px 0 26px;
}

.page-products .version-figure {
  margin: 0 0 26px;
  border: 1px solid var(--color-line);
  background: rgba(10, 30, 60, 0.5);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.page-products .version-figure img {
  width: 100%;
  max-height: 340px;
  object-fit: cover;
  display: block;
}

.page-products .version-filterbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 26px;
}

.page-products .version-filterbar__label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--color-muted);
  margin-right: 6px;
}

.page-products .version-filterbar .tag {
  margin: 0;
}

.page-products .version-archive {
  border-top: 1px solid var(--color-line);
}

.page-products .version-archive__item {
  border-bottom: 1px solid var(--color-line);
  background: rgba(10, 30, 60, 0.35);
  transition: background 0.25s ease;
}

.page-products .version-archive__item[open] {
  background: rgba(255, 107, 53, 0.04);
}

.page-products .version-archive__item summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 6px;
}

.page-products .version-archive__item summary::-webkit-details-marker {
  display: none;
}

.page-products .version-archive__item summary:focus-visible {
  outline: 2px solid var(--color-orange);
  outline-offset: 2px;
}

.page-products .version-archive__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
}

.page-products .version-archive__season {
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.01em;
}

.page-products .version-archive__label {
  font-size: 12px;
  color: var(--color-muted);
  border: 1px solid var(--color-line);
  border-radius: 999px;
  padding: 2px 10px;
}

.page-products .version-archive__toggle {
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--color-orange);
  flex-shrink: 0;
}

.page-products .version-archive__toggle::after {
  content: "+";
}

.page-products .version-archive__item[open] .version-archive__toggle::after {
  content: "−";
}

.page-products .version-archive__body {
  padding: 0 6px 20px;
  border-top: 1px dashed var(--color-line);
  margin: 0 0 6px;
}

.page-products .version-archive__body p {
  font-size: 13px;
  line-height: 1.8;
  color: var(--color-muted);
  margin: 14px 0 0;
  max-width: 680px;
}

/* ========== 底部 CTA ========== */
.page-products .services-cta {
  padding: 56px 0 64px;
  background: var(--color-midnight);
  position: relative;
}

.page-products .services-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--color-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-line) 1px, transparent 1px);
  background-size: 38px 38px;
  opacity: 0.12;
  pointer-events: none;
}

.page-products .services-cta__inner {
  position: relative;
  z-index: 1;
  border: 1px solid var(--color-line);
  background: rgba(20, 44, 74, 0.65);
  padding: 36px 24px;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}

.page-products .services-cta .page-hero__index {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--color-orange);
  margin-bottom: 10px;
}

.page-products .services-cta h2 {
  font-family: var(--font-heading);
  font-size: 24px;
  margin: 0 0 12px;
  line-height: 1.25;
}

.page-products .services-cta__lead {
  font-size: 14px;
  line-height: 1.75;
  color: var(--color-muted);
  max-width: 560px;
  margin: 0 auto 28px;
}

.page-products .services-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-bottom: 20px;
}

.page-products .services-cta .btn--outline {
  border: 1px solid var(--color-line);
  color: var(--color-text);
  background: transparent;
}

.page-products .services-cta__footnote {
  font-size: 12px;
  color: var(--color-muted);
  font-family: var(--font-mono);
  margin: 0;
}

/* ========== 响应式调整 ========== */
@media (min-width: 720px) {
  .page-products .products-hero h1 {
    font-size: 38px;
  }

  .page-products .services-blurb__meta {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }

  .page-products .bind-steps {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-products .bind-step {
    flex-direction: column;
    gap: 10px;
    padding: 18px 16px;
  }

  .page-products .bind-step__num {
    font-size: 22px;
  }

  .page-products .binding-flow__note,
  .page-products .binding-flow > .btn {
    margin-top: 4px;
  }

  .page-products .version-archive__item summary {
    padding: 20px 10px;
  }

  .page-products .version-archive__body {
    padding: 0 10px 22px;
  }
}

@media (min-width: 1024px) {
  .page-products .products-hero__inner {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
    gap: 56px;
    align-items: flex-start;
  }

  .page-products .products-hero__panel {
    margin-top: 10px;
  }

  .page-products .services-blurb {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 40px;
    align-items: center;
  }

  .page-products .services-blurb__frame {
    min-height: 320px;
  }

  .page-products .service-tree {
    position: relative;
    margin-top: 56px;
    gap: 0;
  }

  .page-products .service-tree::before {
    content: "";
    position: absolute;
    left: 208px;
    top: 8%;
    bottom: 8%;
    width: 2px;
    background: var(--color-line);
    opacity: 0.8;
  }

  .page-products .service-tree__row {
    display: grid;
    grid-template-columns: 200px 80px minmax(0, 1fr);
    gap: 0;
    align-items: center;
    padding: 14px 0;
  }

  .page-products .service-tree__node {
    grid-column: 1;
    width: 200px;
    align-self: stretch;
    display: flex;
    flex-direction: column;
    justify-content: center;
    border-right: 3px solid rgba(255, 107, 53, 0.45);
  }

  .page-products .service-tree__connect {
    display: block;
    grid-column: 2;
    width: 80px;
    height: 64px;
  }

  .page-products .service-tree__detail {
    grid-column: 3;
    align-self: center;
  }

  .page-products .binding-grid {
    flex-direction: row;
    align-items: flex-start;
    gap: 60px;
  }

  .page-products .binding-flow {
    flex: 1;
  }

  .page-products .binding-aside {
    flex: 0 0 360px;
  }

  .page-products .android-grid {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    gap: 56px;
    align-items: center;
  }

  .page-products .android-figure__frame {
    max-width: 400px;
  }

  .page-products .android-content__lead {
    margin-top: 24px;
  }

  .page-products .version-filterbar {
    gap: 10px;
  }

  .page-products .services-cta__inner {
    padding: 48px 48px;
  }
}